Comcast Corp (CMCSA)

Comcast Corp insiders have engaged in multiple sell transactions, with the most recent activity occurring on March 5, 2026. Key executives, including the CFO and Co-CEO, have executed sales of company shares over the past several months. These transactions represent a consistent pattern of divestment by leadership and board members.
Ticker: CMCSA Exchange: NSM


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Insider trades have triggered activity signals for Comcast Corp. Upgrade to see score, net flow, insiders and the full signal context.

Top insiders
Trades
Armstrong Jason
CFO
2 sales — total 285,234 USD
Sale 5 Mar 2026
Value US$1,832,497.98 | Price 464.49 | Shares 9,981
Proposed sale 5 Mar 2026
Value US$1,156,573.36 | Price 136.31 | Shares 28,463
Sale 11 Feb 2026
Value US$705,479.01 | Price 324.94 | Shares 60,283
Proposed sale 11 Feb 2026
Value US$4,618,864.90 | Price 12.95 | Shares 1,089
Sale 3 Feb 2026
Value US$245,767.50 | Price 29.70 | Shares 8,275
Proposed sale 3 Feb 2026
Value US$245,767.50 | Price 29.70 | Shares 8,275
Sale 27 Nov 2024
Value US$10,061,170.01 | Price 42.80 | Shares 235,051
Sale 26 Nov 2024
Value US$10,002,632.83 | Price 42.66 | Shares 234,464
Sale 26 Nov 2024
Value US$4,577,045.28 | Price 42.53 | Shares 107,622
Sale 26 Nov 2024
Value US$1,087,666.80 | Price 42.59 | Shares 25,537
Proposed sale 26 Nov 2024
Value US$4,577,045.61 | Price 42.53 | Shares 107,622
Proposed sale 26 Nov 2024
Value US$1,087,666.34 | Price 42.59 | Shares 25,537
Proposed sale 26 Nov 2024
Value US$20,409,817.05 | Price 43.47 | Shares 469,515
Sale 22 Nov 2024
Value US$625,092.52 | Price 43.39 | Shares 14,408
Proposed sale 22 Nov 2024
Value US$626,315.76 | Price 43.47 | Shares 14,408
Sale 6 Nov 2024
Value US$593,944.93 | Price 44.83 | Shares 13,248
Sale 6 Nov 2024
Value US$448,600.00 | Price 44.86 | Shares 10,000
Proposed sale 6 Nov 2024
Value US$1,042,545.30 | Price 44.84 | Shares 23,248
Sale 29 Jan 2024
Value US$5,290,192.82 | Price 46.10 | Shares 114,749
Proposed sale 29 Jan 2024
Value US$5,290,195.72 | Price 46.10 | Shares 114,749
Sale 20 Nov 2023
Value US$1,500,346.60 | Price 42.63 | Shares 35,192
Sale 20 Nov 2023
Value US$275,669.13 | Price 42.60 | Shares 6,471
Proposed sale 20 Nov 2023
Value US$1,776,016.36 | Price 42.63 | Shares 41,663
Sale 14 Nov 2023
Value US$25,827,420.66 | Price 41.92 | Shares 616,143
Proposed sale 14 Nov 2023
Value US$26,062,850.00 | Price 42.30 | Shares 616,143
Proposed sale 14 Nov 2023
Value US$25,380,000.00 | Price 42.30 | Shares 600,000
Sale 14 Dec 2022
Value US$71,770.00 | Price 35.89 | Shares 2,000
Sale 27 May 2022
Value US$397,340.50 | Price 44.50 | Shares 8,929
Sale 11 Mar 2022
Value US$2,988,452.08 | Price 45.69 | Shares 65,410
Sale 4 Jun 2021
Value US$229,331.65 | Price 56.89 | Shares 4,031
Sale 10 May 2021
Value US$233,328.90 | Price 58.83 | Shares 3,966
Sale 3 May 2021
Value US$557,456.05 | Price 56.89 | Shares 9,800
Sale 30 Apr 2021
Value US$39,173,949.60 | Price 55.20 | Shares 709,673
Sale 4 Mar 2021
Value US$325,413.00 | Price 54.24 | Shares 6,000
Sale 4 Mar 2021
Value US$1,805,288.32 | Price 54.89 | Shares 32,891
Sale 11 Feb 2021
Value US$9,562,028.91 | Price 52.75 | Shares 181,281
Sale 28 Jan 2021
Value US$49,950.50 | Price 49.95 | Shares 1,000
Sale 28 Jan 2021
Value US$49,997.00 | Price 50.00 | Shares 1,000
Sale 2 Dec 2020
Value US$285,937.95 | Price 51.23 | Shares 5,582
Planned sale 24 Aug 2020
Value US$36,353.76 | Price 42.87 | Shares 848
Sale 3 Aug 2020
Value US$4,268,559.99 | Price 42.91 | Shares 99,484
Planned sale 15 Jun 2020
Value US$175,089.60 | Price 38.60 | Shares 4,536
Sale 8 May 2020
Value US$571,120.20 | Price 36.47 | Shares 15,660
Planned sale 16 Apr 2020
Value US$34,490.07 | Price 37.53 | Shares 919
Planned sale 19 Mar 2020
Value US$23,950.08 | Price 35.64 | Shares 672
Planned sale 18 Mar 2020
Value US$33,295.37 | Price 36.23 | Shares 919
Planned sale 17 Mar 2020
Value US$37,938.90 | Price 36.55 | Shares 1,038
Sale 16 Mar 2020
Value US$4,373,147.92 | Price 37.30 | Shares 117,230
Sale 16 Mar 2020
Value US$3,138,988.43 | Price 36.69 | Shares 85,552
Planned sale 20 Feb 2020
Value US$53,860.80 | Price 45.80 | Shares 1,176
Sale 6 Feb 2020
Value US$22,931,322.13 | Price 44.64 | Shares 513,706
Sale 16 Dec 2019
Value US$11,405,127.44 | Price 43.83 | Shares 260,195
Sale 16 Dec 2019
Value US$16,327,528.71 | Price 43.71 | Shares 373,508
Sale 16 Dec 2019
Value US$3,410,861.30 | Price 43.67 | Shares 78,100
Sale 29 Oct 2019
Value US$254,637.04 | Price 45.47 | Shares 5,600
Sale 28 Oct 2019
Value US$22,859,978.54 | Price 44.98 | Shares 508,248
Sale 4 Sep 2019
Value US$180,136.00 | Price 45.03 | Shares 4,000
Planned sale 22 Aug 2019
Value US$37,507.04 | Price 44.23 | Shares 848
Planned sale 13 Jun 2019
Value US$70,523.46 | Price 41.46 | Shares 1,701
Sale 26 Apr 2019
Value US$10,365,104.09 | Price 43.31 | Shares 239,307
Sale 26 Apr 2019
Value US$6,466,432.72 | Price 43.29 | Shares 149,392
Sale 26 Apr 2019
Value US$3,004,833.06 | Price 43.59 | Shares 68,934
Planned sale 23 Apr 2019
Value US$187,077.96 | Price 41.88 | Shares 4,467
Planned sale 17 Apr 2019
Value US$187,656.00 | Price 42.00 | Shares 4,468
Planned sale 17 Apr 2019
Value US$43,596.00 | Price 42.00 | Shares 1,038
Planned sale 29 Mar 2019
Value US$4,783,560.00 | Price 39.86 | Shares 120,000
Planned sale 28 Mar 2019
Value US$468,810.72 | Price 40.31 | Shares 11,631
Planned sale 28 Mar 2019
Value US$199,615.81 | Price 40.30 | Shares 4,953
Planned sale 28 Mar 2019
Value US$182,228.32 | Price 40.32 | Shares 4,520
Planned sale 28 Mar 2019
Value US$147,805.77 | Price 40.31 | Shares 3,667
Planned sale 26 Mar 2019
Value US$246,543.84 | Price 39.38 | Shares 6,260
Planned sale 25 Mar 2019
Value US$159,592.42 | Price 39.46 | Shares 4,044
Planned sale 25 Mar 2019
Value US$136,588.36 | Price 39.47 | Shares 3,461
Planned sale 22 Mar 2019
Value US$634,331.70 | Price 39.87 | Shares 15,910
Planned sale 22 Mar 2019
Value US$460,266.61 | Price 39.57 | Shares 11,632
Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other
Notification date Transaction date B/S Transaction type Insider and/or position Nb. shares
Price
Value
Number of shares Price Value Details
2026-03-06 2026-03-05 S Sale

CFO

Officer
9,981 +22.4%
464.49
US$1,832,498
9,981 +22.4% 464.49 US$1,832,498
2026-03-05 2026-03-05 PrS Proposed sale

Officer

Officer
28,463
136.31
US$1,156,573
28,463 136.31 US$1,156,573
2026-02-13 2026-02-11 S Sale

Co-CEO

Executive Director
60,283 +17.7%
324.94
US$705,479
60,283 +17.7% 324.94 US$705,479
2026-02-11 2026-02-11 PrS Proposed sale

Member of immediate family of any of the foregoing

57,947
32.66
US$1,892,549
57,947 32.66 US$1,892,549
2026-02-04 2026-02-03 S Sale Non-Executive Director
8,275 -12.5%
29.70
US$245,768
8,275 -12.5% 29.70 US$245,768
2026-02-03 2026-02-03 PrS Proposed sale

Director

Non-Executive Director
8,275
29.70
US$245,768
8,275 29.70 US$245,768
2024-11-29 2024-11-27 S Sale

Chairman of Board & CEO

Executive Director
235,051 -3.5%
42.80
US$10,061,170
235,051 -3.5% 42.80 US$10,061,170
2024-11-29 2024-11-26 S Sale

Chairman of Board & CEO

Executive Director
234,464 -3.4%
42.66
US$10,002,633
234,464 -3.4% 42.66 US$10,002,633
2024-11-29 2024-11-26 S Sale

President

Officer
107,622 -19.2%
42.53
US$4,577,045
107,622 -19.2% 42.53 US$4,577,045
2024-11-29 2024-11-26 S Sale

President

Officer
25,537 -4.6%
42.59
US$1,087,667
25,537 -4.6% 42.59 US$1,087,667
2024-11-26 2024-11-26 PrS Proposed sale

Affiliate

469,515
43.47
US$20,409,817
469,515 43.47 US$20,409,817
2024-11-26 2024-11-26 PrS Proposed sale

Member of immediate family of any of the foregoing

107,622
42.53
US$4,577,046
107,622 42.53 US$4,577,046
2024-11-26 2024-11-26 PrS Proposed sale

Officer

Officer
25,537
42.59
US$1,087,666
25,537 42.59 US$1,087,666
2024-11-25 2024-11-22 S Sale Non-Executive Director
14,408 -30.6%
43.39
US$625,093
14,408 -30.6% 43.39 US$625,093
2024-11-22 2024-11-22 PrS Proposed sale

Director

Non-Executive Director
14,408
43.47
US$626,316
14,408 43.47 US$626,316
2024-11-07 2024-11-06 S Sale

CFO

Officer
13,248 -14.2%
44.83
US$593,945
13,248 -14.2% 44.83 US$593,945
2024-11-07 2024-11-06 S Sale

CFO

Officer
10,000 -9.7%
44.86
US$448,600
10,000 -9.7% 44.86 US$448,600
2024-11-06 2024-11-06 PrS Proposed sale

Officer

Officer
23,248
44.84
US$1,042,545
23,248 44.84 US$1,042,545
2024-01-30 2024-01-29 S Sale

President

Officer
114,749 -100.0%
46.10
US$5,290,193
114,749 -100.0% 46.10 US$5,290,193
2024-01-29 2024-01-29 PrS Proposed sale

Officer

Officer
114,749
46.10
US$5,290,196
114,749 46.10 US$5,290,196
2023-11-22 2023-11-20 S Sale

CFO

Officer
35,192 -70.9%
42.63
US$1,500,347
35,192 -70.9% 42.63 US$1,500,347
2023-11-22 2023-11-20 S Sale

CFO

Officer
6,471 -8.4%
42.60
US$275,669
6,471 -8.4% 42.60 US$275,669
2023-11-20 2023-11-20 PrS Proposed sale

Officer

Officer
41,663
42.63
US$1,776,016
41,663 42.63 US$1,776,016
2023-11-15 2023-11-14 S Sale

Chairman of Board & CEO

Executive Director
616,143 -3.5%
41.92
US$25,827,421
616,143 -3.5% 41.92 US$25,827,421
2023-11-14 2023-11-14 PrS Proposed sale

Chairman / CEO

616,143
42.30
US$26,062,850
616,143 42.30 US$26,062,850
2023-11-14 2023-11-14 PrS Proposed sale

Affiliate

600,000
42.30
US$25,380,000
600,000 42.30 US$25,380,000
2022-12-15 2022-12-14 S Sale Non-Executive Director
2,000 -5.2%
35.89
US$71,770
2,000 -5.2% 35.89 US$71,770
2022-05-31 2022-05-27 S Sale

EVP & Chief Accounting Officer

Officer
8,929 -83.1%
44.50
US$397,340
8,929 -83.1% 44.50 US$397,340
2022-03-14 2022-03-11 S Sale

CEO - Comcast Cable

Officer
65,410 -9.9%
45.69
US$2,988,452
65,410 -9.9% 45.69 US$2,988,452
2021-06-07 2021-06-04 S Sale Non-Executive Director
4,031 -12.0%
56.89
US$229,332
4,031 -12.0% 56.89 US$229,332
2021-05-11 2021-05-10 S Sale Non-Executive Director
3,966 -10.6%
58.83
US$233,329
3,966 -10.6% 58.83 US$233,329
2021-05-04 2021-05-03 S Sale

EVP & Chief Accounting Officer

Officer
9,800 -99.7%
56.89
US$557,456
9,800 -99.7% 56.89 US$557,456
2021-04-30 2021-04-30 S Sale

Chairman of Board, Pres. & CEO

Executive Director
709,673 -8.7%
55.20
US$39,173,950
709,673 -8.7% 55.20 US$39,173,950
2021-03-05 2021-03-04 S Sale Non-Executive Director
6,000 -49.2%
54.24
US$325,413
6,000 -49.2% 54.24 US$325,413
2021-03-05 2021-03-04 S Sale

EVP

Officer
32,891 -47.8%
54.89
US$1,805,288
32,891 -47.8% 54.89 US$1,805,288
2021-02-12 2021-02-11 S Sale

Sr. EVP

Officer
181,281 -22.0%
52.75
US$9,562,029
181,281 -22.0% 52.75 US$9,562,029
2021-01-29 2021-01-28 S Sale Non-Executive Director
1,000 -7.6%
49.95
US$49,950
1,000 -7.6% 49.95 US$49,950
2021-01-29 2021-01-28 S Sale Non-Executive Director
1,000 -7.1%
50.00
US$49,997
1,000 -7.1% 50.00 US$49,997
2020-12-03 2020-12-02 S Sale

CEO - NBCUniversal

Officer
5,582 -1.6%
51.23
US$285,938
5,582 -1.6% 51.23 US$285,938
2020-08-25 2020-08-24 PlS Planned sale

SVP & Chief Accounting Officer

Officer
848 -20.9%
42.87
US$36,354
848 -20.9% 42.87 US$36,354
2020-08-04 2020-08-03 S Sale

CEO - NBCUniversal

Officer
99,484 -15.9%
42.91
US$4,268,560
99,484 -15.9% 42.91 US$4,268,560
2020-06-16 2020-06-15 PlS Planned sale

SVP & Chief Accounting Officer

Officer
4,536 -58.6%
38.60
US$175,090
4,536 -58.6% 38.60 US$175,090
2020-05-11 2020-05-08 S Sale Non-Executive Director
15,660 -39.4%
36.47
US$571,120
15,660 -39.4% 36.47 US$571,120
2020-04-17 2020-04-16 PlS Planned sale

SVP & Chief Accounting Officer

Officer
919 -25.7%
37.53
US$34,490
919 -25.7% 37.53 US$34,490
2020-03-20 2020-03-19 PlS Planned sale

SVP & Chief Accounting Officer

Officer
672 -20.2%
35.64
US$23,950
672 -20.2% 35.64 US$23,950
2020-03-20 2020-03-18 PlS Planned sale

SVP & Chief Accounting Officer

Officer
919 -21.6%
36.23
US$33,295
919 -21.6% 36.23 US$33,295
2020-03-18 2020-03-17 PlS Planned sale

SVP & Chief Accounting Officer

Officer
1,038 -22.5%
36.55
US$37,939
1,038 -22.5% 36.55 US$37,939
2020-03-18 2020-03-16 S Sale

Sr. EVP

Officer
117,230 -14.4%
37.30
US$4,373,148
117,230 -14.4% 37.30 US$4,373,148
2020-03-18 2020-03-16 S Sale

Sr. EVP

Officer
85,552 -9.5%
36.69
US$3,138,988
85,552 -9.5% 36.69 US$3,138,988
2020-02-24 2020-02-20 PlS Planned sale

SVP & Chief Accounting Officer

Officer
1,176 -30.7%
45.80
US$53,861
1,176 -30.7% 45.80 US$53,861
2020-02-07 2020-02-06 S Sale

Chairman of Board, Pres. & CEO

Executive Director
513,706 -12.4%
44.64
US$22,931,322
513,706 -12.4% 44.64 US$22,931,322
2019-12-18 2019-12-16 S Sale COHEN DAVID L

Sr. EVP

Officer
260,195 -24.6%
43.83
US$11,405,127
260,195 -24.6% 43.83 US$11,405,127
2019-12-18 2019-12-16 S Sale COHEN DAVID L

Sr. EVP

Officer
373,508 -35.3%
43.71
US$16,327,529
373,508 -35.3% 43.71 US$16,327,529
2019-12-18 2019-12-16 S Sale WATSON DAVID N

Sr. EVP

Officer
78,100 -13.2%
43.67
US$3,410,861
78,100 -13.2% 43.67 US$3,410,861
2019-10-30 2019-10-29 S Sale
5,600 -5.4%
45.47
US$254,637
5,600 -5.4% 45.47 US$254,637
2019-10-29 2019-10-28 S Sale

Chairman of Board, Pres. & CEO

Executive Director
508,248 -12.4%
44.98
US$22,859,979
508,248 -12.4% 44.98 US$22,859,979
2019-09-06 2019-09-04 S Sale
4,000 -11.9%
45.03
US$180,136
4,000 -11.9% 45.03 US$180,136
2019-08-23 2019-08-22 PlS Planned sale Murdock Daniel C.

SVP & Chief Accounting Officer

Officer
848 -28.5%
44.23
US$37,507
848 -28.5% 44.23 US$37,507
2019-06-14 2019-06-13 PlS Planned sale

SVP & Chief Accounting Officer

1,701 -44.4%
41.46
US$70,523
1,701 -44.4% 41.46 US$70,523
2019-04-29 2019-04-26 S Sale

Sr. EVP

239,307 -25.8%
43.31
US$10,365,104
239,307 -25.8% 43.31 US$10,365,104
2019-04-29 2019-04-26 S Sale

Sr. EVP

149,392 -13.9%
43.29
US$6,466,433
149,392 -13.9% 43.29 US$6,466,433
2019-04-29 2019-04-26 S Sale

Sr. EVP

68,934 -5.5%
43.59
US$3,004,833
68,934 -5.5% 43.59 US$3,004,833
2019-04-24 2019-04-23 PlS Planned sale

Sr. EVP

4,467 -1.7%
41.88
US$187,078
4,467 -1.7% 41.88 US$187,078
2019-04-18 2019-04-17 PlS Planned sale

Sr. EVP

4,468 -1.7%
42.00
US$187,656
4,468 -1.7% 42.00 US$187,656
2019-04-18 2019-04-17 PlS Planned sale

SVP & Chief Accounting Officer

1,038 -32.7%
42.00
US$43,596
1,038 -32.7% 42.00 US$43,596
2019-04-01 2019-03-29 PlS Planned sale

Sr. EVP

120,000 -13.1%
39.86
US$4,783,560
120,000 -13.1% 39.86 US$4,783,560
2019-04-01 2019-03-28 PlS Planned sale

Sr. EVP

11,631 -4.4%
40.31
US$468,811
11,631 -4.4% 40.31 US$468,811
2019-04-01 2019-03-28 PlS Planned sale

Sr. EVP

4,953 -1.8%
40.30
US$199,616
4,953 -1.8% 40.30 US$199,616
2019-04-01 2019-03-28 PlS Planned sale

Sr. EVP

4,520 -1.7%
40.32
US$182,228
4,520 -1.7% 40.32 US$182,228
2019-04-01 2019-03-28 PlS Planned sale

Sr. EVP

3,667 -1.3%
40.31
US$147,806
3,667 -1.3% 40.31 US$147,806
2019-03-27 2019-03-26 PlS Planned sale

EVP, GC and Secretary

Officer
6,260 -8.6%
39.38
US$246,544
6,260 -8.6% 39.38 US$246,544
2019-03-27 2019-03-25 PlS Planned sale

EVP, GC and Secretary

Officer
4,044 -5.4%
39.46
US$159,592
4,044 -5.4% 39.46 US$159,592
2019-03-27 2019-03-25 PlS Planned sale

EVP, GC and Secretary

Officer
3,461 -4.4%
39.47
US$136,588
3,461 -4.4% 39.47 US$136,588
2019-03-25 2019-03-22 PlS Planned sale

Sr. EVP

15,910 -5.4%
39.87
US$634,332
15,910 -5.4% 39.87 US$634,332
2019-03-25 2019-03-22 PlS Planned sale

Sr. EVP

11,632 -3.8%
39.57
US$460,267
11,632 -3.8% 39.57 US$460,267